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(No Model.) 2 Sheets-Sheet 1. 0. KLATTE. MAGHINE FOR SEPARATING-LINKSFROM GHAIN BARS.

Patented Oct. 1,1895.

(No Model.) 0 KLATTE v 2 Sheets-Sheet 2.

MACHINE FOR SEPARATINGTLINKS FROM CHAIN-BARS. No. 547,268. Patented Oct.1, 1895.

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Unites States FATENT @rrrcn.

OTTO KLATTE, OF NEUWIED, GERMANY.

MACHINE FOR SEPARATING LINKS FROM CHAIN-=BARS.

$PECIFICATION forming part of Letters Patent No. 547,268, dated October1, 1895.

Application filed April 12, 1894. Serial No. 507,264. (No model.)Patented in Luxemburg August 10, 1893, No. 1,874; in France August 11,1893,1ll0. 232,132; in Norway August 16, 1893, N0- 3,39l; in BelgiumAugust 18, 1893, No. 106,021, and in Italy September 30,1893,1 l0-69/88,

To all whom it may concern;

Beit known that I, OTTO KLATTE, a subject of the'King of Prussia, GermanEmperor, residing at Neuwied-on-the-Rhine, Prussia, Germany, haveinvented a certain new and Improved Machine for Separating Links fromChain-Bars, (for which I have obtained Letters Patent as follows: inFrance, No. 232,132, dated August 11, 1893;in Belgium, No. 106,021,dated August 18, 1893; in Italy, No. 69/88, dated September 30, 1893; inNorway, No. 3,391, dated August 16, 1893, and in Luxemburg, No. 1,874,dated August 10, 1893,) of which the following is a specification.

My invention relates to the manufacture of chains and particularly toamachine for separating the series of links lying in ahorizontal planefrom those lying in a vertical plane in X or cross shaped bars,whichhave been formed either by rolling or stamping into two rows ofchain-links which are linked together, or, in other words, to a machinefor separating the two rows of links at the places where theyintersect-that is, where theinner surfaces of two links which are linkedin one another are in contact.

In carrying out my invention 1 make use of two or three rollers arrangedone above the other, the peripheries of which are so grooved that whenthe chain-bar is passed through these grooves the horizontal row oflinks is displaced relatively to the vertical row, thereby causing theshearing of the metal at the specified places. A machine consist ing ofthree rolls is illustrated in the accompanying drawings, in which-Figure 1 shows a front elevation of the three rolls, and Fig. 2 across-section on the line 1 1, Fig. 1. Fig. 3 isaplan of the chainbar,the links of which are still in a very rough imperfect form. Fig. 4; isa section on the line 2 2, Fig. 3, and Fig. 5 shows a similar section,inwhich, however, the relative position of the two rows of links has beenaltered. Figs. 6, 7, and 8 show views similar to those of Figs. 3, 4,and 5 of a chain-bar, the links of which presentafairly completed shape.Figs. 9, 10, and 11 are views similar to Figs. 3, 4, and 5 of achain-bar, the links of which show a finished shape.

In Figs. 3 to 11 the vertical row of links is marked 1 and thehorizontal row is marked 2.

The bar, which has been formed by rolling or stamping, possesses thinwebs both on the inher and outer sides ofthe links, which are so fardetached by punching, as is shown by the shaded parts on the right-handsides of Figs. 3, 6, and 9. The one row of links 1 is attached to theother row 2 at the parts 3, and the links of each row are connectedtogether at the parts marked 4- The separation of the two series oflinks at the places 3 is nowcffected by displacing one row with respectto the other. In order to insure that the cohesion of the molecules inthis operation is overcome and that shearing takes place, thisdisplacement is carried out at a certain temperature at which thecohesive properties of the material are favorable for shearing and whichdepends on the kind of material-for wrought-iron 150 to 200 and forsteel the socalled blue coloration.

The displacement of the two rows of links relatively to one another andthereby the shearing at the parts 3 is effected by means of the machineshown in Fig. 1, which con sists of three rolls 5, 6, and 7, situatedone above the other and of approximately equal diameter. The necks orshafts 8 8 9 9 10 10 (shown broken off in Fig. 1) of these rolls aremounted in bearings in two standards and each roll is separately drivenat the same speed.

The generatrix of the surface of each roll is a broken line 11 11 ll 11,and each roll is provided with annular grooves 12 12, 13 13, 14 14, and15 15, of different depths. The form of the generatrix and the positionand depth of the annular grooves are so chosen that when the rolls areseparated from one another by a distance equal to the thickness of alink the grooves are opposite one another, and the distance between thebottoms of two opposite grooves is equal to the height or breadth of alink.- The grooves 12 of all three rolls are of the same depth. It nowthe vertical row of links of a chain-bar be passed through two oppositegrooves 12, while the horizontal row of links passes between the rolls,the rows of links will only be straightened with respect to one another.The grooves 13 of the middle roll 6 are not so deep as the grooves 12,the grooves 14 not so deep as the grooves 13, and so on. The grooves 13of the rolls 5 and 7 are on the contrary deeper than the grooves 12, thegrooves 14 deeper than the grooves 13,andso on. The distance between thebottoms of two opposite grooves in every case remains, however, alwaysequal to the height of a link. In consequence, therefore, of thisarrangement, when the chain-bar is passed through the grooves 13 13 1414 15 15, 850., one after the other in the order of sequence indicatedby the numbers the hori zontal row of links is more and more displacedwith respect to the vertical row and the shearing of the parts 3, Figs.4, 7, and 10 effected. After the shearing the links have the relativepositions shown in Figs. 5, 8, and 11. The chain-rod is passed at leasttwice through the grooves and the row of links which was horizontal inthe first passage through the grooves is passed through verti cally thesecond time. After the two rows of links have been separated from oneanother the links of each row have still to be separated at the places4:, Figs. 3, 6, and 9. This is effected in the rod represented in Fig. 3by sawing and in the rods shown in Figs. 6 and 9 simply by fracturingthe cross-shaped connecti'ng-barbs.

I do not herein claim the method of making chains by a rolling orstamping operation, my invention being confined to a machine forseparating from each other the two rows of links which as the chain-barleaves the rolling orstamping operation are at right angles to eachother, the separation of the vertical row from the horizontal row by mymachine leaving the links of each row adhering to one another, the barbeing still a rigid bar with the one row of links separated from thelinks of the other row, thus permitting one row to be displaced againstthe other.

Having fully described myinvention, what I desire to claim and secure byLetters Patent is In the manufacture of weldless chains, the combinationwith a set of cylindrical rolls 5, 6 and 7, mounted one above the otherand adapted to be separately driven with equal velocity, each of saidrolls having annular grooves of different depths, the registeringgrooves of the several rolls being of such relative depths that as thechain bar is passed successively through the rolls the horizontal row oflinks is more and more displaced with respect to the vertical row,substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OTTO KLATTE. Witnesses:

FRITZ ScHoRDER, SOPHIE NAGEL.

